Доброе время суток.
Столкнулся с проблемой есть 12.04LTS пробую обновить до следующей LTS версии с помощью do-release-upgrade мне выдаёт сообщение:
Error during update
A problem occurred during the update. This is usually some sort of
network problem, please check your network connection and retry.
W:Failed to fetch
http://archive.ubuntu.com/ubuntu/dists/trusty-backports/ReleaseUnable to find expected entry '$/source/Sources' in Release file
(Wrong sources.list entry or malformed file)
, E:Some index files failed to download. They have been ignored, or
old ones used instead.
Restoring original system state
Aborting
Reading package lists... Done
Building dependency tree
Reading state information... Done
Building data structures... Done
=== Command detached from window (Tue Feb 24 10:46:25 2015) ===
=== Command terminated with exit status 1 (Tue Feb 24 10:46:25 2015) ===
В чём может быть проблема? И как дальше быть?